JPS5949975B2 - basement structure - Google Patents
basement structureInfo
- Publication number
- JPS5949975B2 JPS5949975B2 JP55164870A JP16487080A JPS5949975B2 JP S5949975 B2 JPS5949975 B2 JP S5949975B2 JP 55164870 A JP55164870 A JP 55164870A JP 16487080 A JP16487080 A JP 16487080A JP S5949975 B2 JPS5949975 B2 JP S5949975B2
- Authority
- JP
- Japan
- Prior art keywords
- foundation slab
- unbonded
- slab
- drainage channel
- steel wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Description
【発明の詳細な説明】
この発明はスパンの大きい建築物における最下階の地下
室構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a basement structure on the lowest floor in a building with a large span.
一般に地下室の最下階では湧水、雨水の止水のためおよ
び結露対策のため１，５０〜２．ＯＯｍの間隔をもって
かつ地中梁を配した二重スラブ構造が採用されている。Generally, on the lowest floor of a basement, 1,50 to 2. A double slab structure with underground beams is used with a spacing of OOm.
したがってそれだけ地１の根切りが深く々す、施工費が
多くする。Therefore, the root cutting of ground 1 is deeper and deeper, which increases the construction cost.
そこでアンボンドＰＣ鋼線を埋設したフラットスラブ構
造を基礎スラブに応用することを考慮したがアンボンド
ＰＣ鋼線の緊張定着に工夫を要するとともに基礎スラブ
の防水、防湿気対策が要求される。Therefore, we considered applying a flat slab structure in which unbonded PC steel wires are buried to the foundation slab, but it requires some ingenuity to secure the unbonded PC steel wires under tension, and also requires waterproofing and moisture-proofing measures for the foundation slab.
この発明は前記問題に対処すべく開発したもので以下そ
の詳細を図示した実施例によって説明する。This invention was developed to solve the above problem, and details thereof will be explained below with reference to illustrated embodiments.
根切シした地盤Ａ上に接して鉄筋コンクリート構造の基
礎スラブ１を造成し、その周囲には地下室となる土留壁
２が地下連続壁等によって構造されている。A foundation slab 1 of reinforced concrete structure is constructed in contact with the cut ground A, and an earth retaining wall 2 serving as a basement is constructed around it by an underground continuous wall or the like.
基礎スラブ１と土留壁２との開環基礎スラブの適当な位
置に巾、深さ略１？？Ｚ程度の排水路３が基礎スラブ１
の上面より低く形成しである。Open the ring between foundation slab 1 and retaining wall 2. Width and depth approximately 1? at appropriate positions on the foundation slab. ? Drainage channel 3 of about Z is foundation slab 1
It is formed lower than the top surface of.
ところで基礎スラブ１は柱６の下方で厚くするとともに
、スラブの引張側に略位置するようにアンボンドＰＣ鋼
線７が基礎スラブ１のコンクリート中に埋設しである。By the way, the foundation slab 1 is made thicker below the columns 6, and unbonded PC steel wires 7 are buried in the concrete of the foundation slab 1 so as to be located approximately on the tension side of the slab.
このアンボンドＰＣ鋼線７の端部は排水路３の側壁上部
から突出し、排水路３内でジヤツキＡを使用して緊張作
業を実施し、側壁上部に碇着する。The end of this unbonded PC steel wire 7 protrudes from the upper part of the side wall of the drainage channel 3, is tensioned using jacks A in the drainage channel 3, and is anchored at the upper part of the side wall.
基礎スラブ１上にはキーストンプレート、デツキプレー
ト、折曲げ鉄板等からなる下面に凹部を有する支持部材
４を布設し、その支持部材４上にモルタルあるいはコン
クリート等の床仕上げモルタル類５を打設して床を形成
しである。On the foundation slab 1, a support member 4 made of a keystone plate, a deck plate, a bent iron plate, etc. and having a concave portion on the lower surface is installed, and a floor finishing mortar 5 such as mortar or concrete is placed on the support member 4. to form the floor.
したがって基礎スラブ１上面と支持部材４との間には空
隙Ｂが形成される。Therefore, a gap B is formed between the upper surface of the foundation slab 1 and the support member 4.
この発明は以上の構成からカリ、基礎地盤上に接してア
ンボンドＰＣ鋼線を埋設した基礎スラブを造成しである
のでスラブの厚さを小さくでき、一般的な二重構造スラ
ブ°構造に比較して地下階が低くな）、根切り量、材料
量が減少し大巾なコストダウンが図れる。With the above configuration, this invention creates a foundation slab with unbonded PC steel wire buried in contact with the foundation ground, so the thickness of the slab can be reduced, compared to the general double-layered slab structure. (the basement floor is low), the amount of root cutting, and the amount of materials are reduced, resulting in significant cost reductions.
まだアンボンドＰＣ鋼線は基礎スラブ上面より低くした
排水路において緊張し、その側壁上部に定着するので作
業性がよく、また定着端が腐蝕する恐れがない。The unbonded PC steel wire is still under tension in the drainage channel lower than the top surface of the foundation slab and is anchored to the upper side wall of the drain, making it easy to work with and there is no fear of corrosion at the anchoring end.
また基礎スラブ上には下面に凹部を有する支持部材を布
設することにより、そこに生ずる空隙はスラブよりの漏
水対策、湿気対策となり、さらに配備配管のだめの空間
となり、配管の修理も容易となる。In addition, by installing a supporting member having a recessed portion on the bottom surface on the foundation slab, the void created there serves as a countermeasure against water leakage from the slab and moisture, and also serves as a storage space for deployed piping, making it easy to repair the piping.
図面はこの発明の実施例を示した断面図である。
１・・・基礎スラブ′、２・・・土留壁、３・・・排水
路、４・・・支持部材、５・・・モルタル類、６・・・
柱、７・・・アンボンドＰＣ鋼線、Ａ・・・ジヤツキ、
Ｂ・・・空隙。The drawings are cross-sectional views showing embodiments of the invention. 1...Foundation slab', 2...Earth retaining wall, 3...Drainage channel, 4...Supporting member, 5...Mortar, 6...
Pillar, 7... Unbonded PC steel wire, A... Jacket,
B...Void.
Claims (1)
ＰＣ゛鋼線をコンクリート中に埋設した鉄筋コンクリー
ト構造の基礎スラブを地盤上に造成し、かつ基礎スラブ
にはその上面より低く排水路が形成され、前記アンボン
ドＰＣ鋼線の端部は排水路側壁上部に緊張定着され、基
礎スラブ上面には所要間隔の空隙を形成する下面に凹部
を有する支持部材が布設され、支持部材上に床仕上げモ
ルタル類が打設しであることを特徴とする地下室構造。1 A foundation slab of reinforced concrete structure with unbonded PC steel wire buried in concrete is constructed on the ground so as to be located on the tension side of the foundation slab Z, and a drainage channel is formed in the foundation slab lower than its upper surface. , the end of the unbonded PC steel wire is tension-fixed to the upper part of the side wall of the drainage channel, a supporting member having a concave portion on the lower surface that forms a gap at a required interval is laid on the upper surface of the foundation slab, and floor finishing mortar is placed on the supporting member. A basement structure characterized by being poured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55164870A JPS5949975B2 (en) | 1980-11-21 | 1980-11-21 | basement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55164870A JPS5949975B2 (en) | 1980-11-21 | 1980-11-21 | basement structure |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59141893A Division JPS60102431A (en) | 1984-07-09 | 1984-07-09 | Building structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5789030A JPS5789030A (en) | 1982-06-03 |
| JPS5949975B2 true JPS5949975B2 (en) | 1984-12-05 |
Family
ID=15801483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55164870A Expired JPS5949975B2 (en) | 1980-11-21 | 1980-11-21 | basement structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5949975B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5955921A (en) * | 1982-09-25 | 1984-03-31 | Ohbayashigumi Ltd | Mat slab foundation structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56174369U (en) * | 1980-05-27 | 1981-12-23 |
-
1980
- 1980-11-21 JP JP55164870A patent/JPS5949975B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5789030A (en) | 1982-06-03 |
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